The Heritability Index for Intelligence Is Approximately

question 553

Multiple Choice

The heritability index for intelligence is approximately .50,meaning that:

• A)genetic factors are 50% more important than environmental factors in determining intelligence.
• B)parents with above-average intelligence have a 50% chance of producing a child with above-average intelligence.
• C)about half of the variability in intelligence scores in the population can be attributed to environmental factors.
• D)intelligence is completely the result of genes for 50% of people.